Marking machine



Nov. 24, 1953 J. L. LUTYENS MARKING MACHINE Filed Dec. 28, 1951 Inventor John L. Lu fyefls 5 is LLorney Patented Nov. 24, 1953 NIT D STATES PATENT CE? 1 as ent-1 M'AKKING MAGHINE Je nLes ie Lutye s ,L .ts t En land. assi spr to UniteQShQQMachine Corporation, Fleming ton, N; Ja a corporation of New Jersey Aspirant Dee m s 28, 51 eem 2 am Claims priority fireat Britain May 4; 9 1.

7;. aims. 1

This invention relates to marking machines, and-;mor;eparticularly to stitch marking machines of the type commonly used inshoe factories for marking leatherarticles such as shoe uppers with apattern or-with guide lines for subsequent ornamental stitching" and the like, although it will'beunderstood that the invention isnotlimited inits application to machines of this type. The invention is illustrated as embodied in a machine of the type shown and described in application for Letters Patent. of the United-States, Serial'No. 256,420, filed November 15, 1951 in the names of- Bagshaw and-Ruddock.

The machine shown in the aforementioned application includes a carrier for a marking die, the carrierbeingsupported by-a parallel motion linkage for movements from a position in which the die is positioned intermediate an inking device anda work supportto a marking position in which the die is incontactwitha work piece on the supportthen back to a position in which the die is in contact with the inking deviceandfinally back-to itsinitialintermediate position. Thedie carrier is provided with ahandle by which it is movedforwardlyby the operator from the intermediate position-to marking position anda cou nterweightis connectedto the die carrier and is arrangedto-carry the die carrier through the remainder of the aforedescribed cycleupon repa e of the carrier frommarking position by thl operat or; thus minimizing the effort; required bythe operator inmoving the die carrier and the die supported thereby; In order to bringthe die ea rrier 'torest in its intermediate position after thedie-has moved into contact with the inking device, thus preventing continuous swinging of thedie carrier for an extended period due to-osci-llations of the counterweight, the aforementioned apparatus is providedwith a suitable brake acting on the di carrier during its forward move- 11161 116 from ink receiving position to its intermediate position.

Itisan obi-act ofthe present invention to pro vide an improved manually-operated marking ehavi l he advantages of the aforemen- "arking'm achine without the necessity of prov a g street for bringing the die carrier to restat the conclusion of a marking cycle. To this-end andi-n accordance with a feature of the invention; thecounter-weight is connected to the die carri'enin-suchiashion that its path ofmovee menu during swinging movement. of: the die. carnier'lbetween its-extreme positions hasa relatively smallnhoriaontal; component: compared; to its-ver-l ticalecomponent.

l theclaims.

In the drawings: Fig. 1 is a side elevation of a portion of one form of machine embodying the invention, i-llus grating the die carrier in=its intermediate posiion;

Fig. 2 is a View similan-to Fig 1-, showing the positions of the partswith the die carrienmoved forwardly to marking position M Fig, 3-is a view similar'to Fig, 1; showing the-die carrier moved rear-wardly -into ink-receiving position; and Fig 4 is asection on theline. IV-IVM Figvh Themachine is illustrated as includinga work support Ill carried by a table t2" and a support- Mfor an inking ribbon l6 byl-whichink is applied a to a die l8 mountedonthe underside'ofi a car rier 20. The die carrier ZJl-is supported-by-pairs of parallel links 22'; 24 providinga eastern-16 tion linkage wherebythecarrier may be moved from an intermediate position, shown 1; to-marking positionas-shown-inFig. 2; and then to an ink-receiving position, as shown inl i-g 3 and finally back to the inter-mediate position shown inFig 1; in which thedie is conclitione d to mark a new workpiece tobe plaoed on thew ork support. l0; Thediecarrier is provided with a. handle 2.6; to facilitate movem'ent of thecarrier by. the. operator from"the-positionshown in I -ig. 1 into the position ofiFigt 2.

The links 22 ,14'1are securedto-shafts 26,39 j ournaled respectively in-thelowerportion of 'the support I14: and in. the. work-support; til; "the coated ribbon lfieis. movedt intermittentlyby any suitable mechanism. during. each marking cycle topresent a fresh surface to .the marking-die-each time that the dieis moved into ink-receiving posi tion as, for exampleby mechanismlof thetype illustrated and? described"; in thetaforementioned application. In place of: the marking-ribbon -on the support Nit-lwill betunclerstood that anzink-i mg padlyor any; other suitablesinking device-may be provided; v

Secured to the shaftlztand arrangedto exe tend downwardly through a slot \32 m the-table ll an army 34 to tthellowserendvofi which is pivoted'an arm 36 carrying at; itsilowerqend a, weight 38; Thisweight-isidetachahly securediat 411 to the arm, 35: so that; it; may; readilybe-l-Yre moved and; a difffi rent weight? substituteditheree for desired. Pivoteck toithelarmtmneanits lower end at 42 is an arm 44 which is in turn pivoted at 46 to a bracket 48 fixedly secured to and depending from the table l2. It will be understood that during movements of the die carrier 28 between its extreme positions the pivot 42 connecting the arms 36 and 44 will move in an arc, the center of which is at the pivot 46 connecting the arm 44 and the bracket 48. The weight 38 which is mounted on the lower end of the arm 36 not far below the pivot 42 will consequently move in a path not far removed from the arc through which the pivot 42 swings. It will thus be seen that the movement of the weight 38 is principally up and down although it has a small horizontal component.

At the beginning of a marking cycle the operator moves the die carrier and associated die forwardly into the marking position illustrated in Fig. 2. During this movement the weight 38 moves upwardly and, to a lesser degree, forwardly or toward theright, as viewed in the drawing. After the die has thus been moved into contact with the work, the operator releases his hold on the handle 26 whereupon the weight moves downwardly into the position shown in Fig. l, mov ing the die carrier 28back to its intermediate position. Th momentum of the parts is such, however, that the die carrier will continue its movement until the die has moved into ink-receiving position, as shown in Fig. 3. At this :time the weight 38 occupies a position higher :than that shown in Fig. 1 but not as high as that shown in Fig. 2 inasmuch as the marking ribbon on the support [4 is in a higher plane than that of the work support [8. Immediately after the die carrier comes to rest in the posi- :tion shown in Fig. 3 the counterweight 38 moves downwardly into the position shown in Fig. l

:to return the die carrier into the intermediate position shown in Fig. 1. The parts have by this time lost a substantial portion of their momentum inasmuch as the vertical distance through which the weight 38 moves from the position of Fig. 3 to the position of Fig. 1 is small and has very little horizontal movement, so that the die carrier quickly comes to rest in its intermediate position.

Having thus described my invention what I claim as new and desire to secure by Letters Patent of the United States is:

1. A marking machine comprising a work support, inking means adjacent to said support, a marking die, a carrier supporting said die, means supporting said carrier for movements into and out of operative relation with said work support and said inking means, a weight, means pivotally connecting said weight to said carrier supporting means, and means constrainin said weight for substantially upward movement in response to movement of said carrier away from a position intermediate said work support and said inking means whereby the weight tends to return said carrier to said intermediate position.

2. A marking machine comprising a work support, inking means adjacent to said support, a marking die, a carrier sup-porting said die, a parallel linkage supporting said carrier for move ment from a first position in which the die is in contact with th inking means into a second position in which the die is in contact with the work piece on the support, a weight pivotally connected to said linkage and actin thereon normally to hold said die carrier in a position intermediate said first and second positions, and means constraining the said weight for substan- 4 tially vertical movement upon movement of said carrier away from said intermediate position.

3. A marking machine comprising a work support, inking means adjacent to said support, a marking die, a carrier supporting said die, a parallel linkage supporting said carrier for movement from a first position in which the die is in contact with the inking means into a second position in which the die is in contact with a work piece on the support, a weight pivotally connected to said linkage and actin thereon normally to hold said die carrier in a position intermediate said first and second positions, and means constraining said weight for movements in a curved path having a substantially greater vertical than horizontal component, upon movement of said carrier out of said intermediate position.

4. A marking machine comprising a work support, inking means adjacent to said support, a marking die, a carrier supporting said die, a parallel linkag supporting said carrier for movement from a first position in which the die is in contact with the inking means into a second position in which the die is in contact with a work piece on the support, and a weight pivotally connected to said linkage and arranged to be lifted thereby in response to movement of said die carrier in either direction from a position intermediate said first and second positions whereby the weight tends to return the carrier to said intermediate position with a minimum of oscillations of the die carrier.

5. A marking machine comprising a marking die carrier movable between a marking position and an ink-receiving position, two sets of parallel links supporting said carrier for movement between said positions, a shaft to which the lower ends of one of said pairs of links is secured, an arm connected to and depending from said shaft, a weight-supporting arm pivotally connected to the lower end of the first-named arm, a weight carried by the lower end of the weight-supporting arm, and means constraining the lower end of said weight-supporting arm for movement in an arcuate path, the center of which is displaced laterally from said weight-supporting arm whereby the weight moves in a path having a substantially greater vertical than horizontal component during movement of the carrier between said positions and whereby the weight normally holds the carrier in a position intermediate the inking and marking positions.

6. A marking machine comprising a marking die carrier movable between a marking position and an ink-receiving position, two sets of parallel links supporting said carrier for movement between said positions, a shaft to which the lower ends of one of said pairs of links is secured, an arm connected to and depending from said shaft, a weight-supporting arm pivotally connected to the lower end of the first-named arm, a weight carried by the lower end of the weight-supporting arm, means constraining the lower end of said weight-supporting arm for movement in an arcuate path, the center of which is displaced laterally from said weight-supporting arm whereby the weight moves in a path having a substantially greater vertical than horizontal component during movement of the carrier between said positions and whereby the weight normally holds the carrier in a position intermediate the inking and marking positions, said last-named means comprising a link pivotally secured to said weight-supporting arm near the lower end of the arm, said link normally extending substantially horizontally from said weight-supporting arm, and means pivotally supporting the other end of said link.

7. A marking machine comprising a work support, inking means adjacent to said support, a marking die, a carrier for said die, parallel linkage supporting said carrier for movement from a first position in which the die is in contact with said inking means into a second position in which the die is in contact with a work piece on said work support, a depending arm swingable in response to such movement of the carrier, a link pivotally connected to said arm, a weight secured to the lower end of said link and tending normally through said arm to hold the carriage in an intermediate position between its first and secend-named positions, and a second arm pivotally connected to said link and mounted to swing about a fixed axis extending transversely of said carrier to cause the weight to be lifted from its lowermost position toward the carrier in response to the movement of the carrier in either direction from its intermediate position whereby the weight tends to return the carrier to said intermediate position with a minimum of oscillations of the carrier.

JOHN LESLIE LUTYENS.

References Cited in the file of this patent UNITED STATES PATENTS Number Name Date 1,608,720 Carter Nov. 30, 1926 1,639,360 Woodworth Aug. 16, 1927 

